# 定义年龄
age = 11
# 判断是否在18~60岁之间
# print(age >= 18 and age <= 60)
print(18 <= age <= 60)

# 判断是否为老人(60岁以上)或者儿童(12岁以下)
# age = 82
# print(age > 60 or age < 12)

# 逻辑非, 取反向
# print(not True)
# print(not False)
